Sequoia (Dominion) AVC Advantage

The Sequoia AVC Advantage is a poll worker-activated full-face direct recording electronic voting system with a touch-sensitive matrix of switches that voters push to indicate their choices. Voting records are recorded internally to battery-powered RAM. Poll workers activate the machine using an operator panel on the side of the machine to choose the ballot style and voters make choices by touching a black arrow next to their choice. A record of the vote is then recorded internally to three sets of battery-powered RAM memory. The primary input device used by the voter is a large panel, containing a two-dimensional array of buttons and lights. This panel is covered by a sheet of paper on which contests and candidate names are printed. Markings on the paper are placed over the buttons that are to be pressed for the corresponding candidates; the lights on the panel, when lit, are visible shining through the paper. On the side of the machine, an “operator panel” contains additional buttons and an LCD alphanumeric display with two rows of 24 characters each. During an election, before each voter can vote, a pollworker must press a button on the operator panel to “activate” the machine to accept votes.

The DRE ballot is laid out so that, to the layman, there is an intuitive connection between the candidate’s name (shown on a printed ballot sheet) and the input device (a button behind a sheet of plastic). In the hardware of the voting machine, however, there is no direct connection between the button and the vote counter. Observing the click of a button and accumulating a corresponding candidate total is totally under software control. Since there is no inherent internal connection between the buttons and the totals kept in memory and reported at the end of the election, erroneous or malfeasant software can readily add to the wrong total or make some other error at any time during an election, thereby misrecording votes. Even though the software produces a so-called “audit trail” of the results, it can always display an “audit trial” consistent with its fraudulent results, and report that it has performed correctly.

At the close of the polls, the AVC Advantage communicates vote totals to election officials and to the public: it prints a paper printout of candidate totals, it writes these totals (along with a record of the votes cast in each ballot, the “ballot image”) to a Results Cartridge, about the size of a VCR tape, that is then removed from the voting machine. Finally, it keeps these totals (with the ballot images) in its internal memory. Election workers can extract this information from the AVC Advantage by using the menu buttons on the Operator Panel: the machine can be instructed to print the internally stored data onto its printer, or copy it to a fresh cartridge.1

Voting Process: The voter enters the polling place and is given a voting ticket after confirming that the voter is registered. The voting ticket is a colored piece of paper with two identical and unique numbers. The voter hands their ticket to a poll worker operating an Advantage voting machine and then tears the voting ticket in half and hands one half back to the voter. The poll worker uses an operator’s panel on the side of the machine to choose the ballot style appropriate for that voter depending on the color of their voting ticket. The voter enters the curtains (see picture above) and verifies that their ballot is the right one by comparing the color of their ticket to a LCD screen in the lower-right corner of the front of the voting machine. Then the voter votes by pressing a black arrow next to each choice in each race on the ballot. Blinking lights above each race indicate that no choice has been made in that race. If the voter tries to choose more than one choice in a given race (over-voting), the machine will ignore the second choice. To change a selection, voter can press the black arrow by the incorrect choice to deselect it, then select the correct choice.

When done voting, the voter presses a “Cast Vote” button in the lower-right corner of the voting machine. It is very important that the voter does not push the vote-casting button until they are done voting; a vote inadvertently cast can likely not be redone. The vote is recorded internally to three sets of battery-powered RAM, one of which is on a removable cartridge. The vote records are stored in a manner similar to a ballot image.

When the polls close, poll workers remove cartridges of battery-powered RAM containing the vote records from each machine. At this point, depending on local election procedure and regulations, the cartridges can either be physically transported to a tabulation facility or their data can be sent over a modem. At the tabulation facility, the votes from all cartridges and precincts are read into vote tabulation databases and combined to result in an aggregate vote tally. In order to send vote records over a modem, a cartridge reader must read out each cartridge and then a modem in the cartridge reader can be used to transmit the votes over telephone lines. The cartridge reader can also print out a results tape of all votes cast in a precinct. The total tape and cartridges can then become part of the official record of the election.

 A Voting Demo from Bergen County NJ

 A Video about the AVC Advantage from NJTodayOnline:

Security Concerns

Security Seals Ideally, the Advantage’s exposed ports, memory card access areas and case seams would be covered with tamper-evident security seals. The integrity of these seals should be maintained at all times, and only breached under controlled, explained circumstances. Seals should be logged to maintain chain of custody of sensitive materials.

Broken Buttons, Broken Lights As mentioned above the Advantage is a “buttonmatrix” DRE where the voter presses a button over which the machine’s paper ballot face is placed (under a plastic cover). A light lights up next to each selection by the voter. These buttons and lights, especially the frequently used ones in Federal races, can break or burn-out. If you see evidence of this – e.g., a light not lighting up after multiple button presses – you should request that the machine be pulled from service or that the button in question be serviced.

Fleeing Voters/Premature Voting Some voters can be easily confused in that they press the vote button too early or not at all. If a voter complains that they only were able to vote on the first few races, they probably pressed the vote button before they were finished voting their ballot. Unfortunately, there’s not much to be done here other than emphasize that voters should make sure that they press the vote button only after they are certain they have voted as they want to in all races on the ballot. If a voter neglects to press the vote button and leaves a valid ballot on the machine, poll workers will probably have procedures to deal with this problem. We recommend that a poll worker reach in between the curtains and simply cast this vote.

Incorrect Ballot Style The Advantage can accommodate a number of different ballots, for different precincts, by disallowing voters to vote in contests for which they are not eligible. If a voter complains that their party (in a primary) races are not activated or that local races specific to their precinct are not activated, the poll worker probably pushed the incorrect ballot style option. The poll worker should cancel that ballot and activate the correct one.

Incorrect Totals Tapes The Advantage has been shown to incorrectly add up the number of voters given a particular ballot style when compared to the number of votes cast.

Sensitive Disability Access Panel The disability access panel on the Advantage is particularly sensitive. Viruses and other malicious programs, including some that could change vote data, could easily be introduced through the ADA accessibility interface. The flash memory used for audio files to accommodate voters with visual impairment should be sealed with tamper-evident seals and monitored at all times.

Misleading Activation When the Advantage is not activated to vote a valid ballot, it will still go through the motions in a way that will confuse voters into
thinking that they ballot was cast. It even goes as far as to say, “Vote recorded — thank you!”, despite the fact that it couldn’t have recorded the ballot since it was not activated to do so.


The Sequoia AVC Advantage was introduced in 1990. James Bleck led the design team that led design patents on the machine in 1988.[94,95] Sequoia had purchased the voting machine division of AVM Corporation in 1984 and acquired not only a portfolio of patents for electronic voting machines, but also the AVM Automatic Voting Computer, a machine that had been certified for use in New Jersey and Pennsylvania in 1982. The machine appears to have been based on AVM’s final patent for an electronic voting machine, granted to Thomas De Phillipo in 1977, and is an obvious predecessor of the Sequoia AVC Advantage. None of the AVM patents demonstrates the sophistication in physical design of the AVC Advantage.

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